Excavating-machine.



0. W. SIEBENHAAR.

EXGAVATING MACHINE.

APPLIoATIoN FILED mv, s, 1909.

Patented July 18, 1911.

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CLUIIIA mum C0., WASMINUTDN, D. C.

o.l w SIEBENHAAR. I BXOAVATING MACHINE. APPLICATION FILED HOV. 8, 1909.

Patented July 18, 1911.

5 SHEETS-SHEET 2.

f77/vento?" W k/'eben/hmr VVE/191165565 A worn/@g5 COLUMIIA PMNOOIAPH C0WASHINGN. D. C

0. W. SIEBENHAAR.

EXCAVATING MACHINE. APP'LIGATION FILED nov. a, 1909.

998,308. Patented July 18,1911.

5 SHEETS-SHEET 3.

Wzn/eses: Inventor www @wwzebmhmr I v fl t ofneys COLUMBIA PLANOGRAPHCDJ WASHINGTON. D. C.

O. W. SIEBENHAAR.

EXGAVATING MACHINE.

APPLIOATIONIILED Noma. 1909.

Patented July 18, 1911.

5 SHEETS-SHEET 4.

Inventor A born/@g5 COLUMBIA PLANoanAp-l co., WASHINGTON. D. c.

o. W. SI'BBBNHAAR.

BXGAVATING MACHINE. APPLIATION FILED NOV. 8, 1909. 998,308, PatentedJuly 18, v1911.

5 SHEETS-SHEET 5.

Wim/@5665.' Inventar M im 2z i 1f' 02% Siebenv/ COLUMBIA PLANDORAPH w..WASHINGTON. D. C.

llhlTTEl) STATES PATENT OFFTCE.

OTTO W. SIEBEN-IAAR, OF FOND DU' LAC, WISCONSIN, ASSIGNOR OF ONE-HALF TOB. F. & I-I. L. SWEET COMPANY, OF FOND DU LAC, WISCONSIN, A CORPORATIONOF WISCONSIN.

EXCAVATING-MACI-IINE.

Q98 EOS Specification of Letters Patent.

Patented July 1s, 1911.

To ali whom it may concern.'

Be it known that I, OTTO W. Si'nnNI-IAAR, a citizen of the UnitedStates, residing at Fond du Lac, in the county of Fond du Lac and Stateof Wisconsin, have invented a certain new and useful Improvement inExcavatingli/iachines, of which the following is a full, clear, concise,and exact description, reference being had to the accompanying drawings,forming a part of this specitication.

My invention relates to excavating machinery.

The machine of my invention is an effective departure from the priorart, and is contemplated to etfectually utilize all the eX- pendedenergy in gaining the desired end. The entire mechanism employed goestoward the proper manipulation of a shovel, spade or scoop, and thevarious combined devices are designed to secure operation of thisultimate device in such a manner that cach load of the excavatedmaterial may be encountered and transferred with the eX- penditure of aminimum amount of energy and with little, if any, waste.

In digging b y hand the action is in the way of spading, that is,actually cutting a portion of the earth away and then carrying olf thatparticular load so determined.

Tt is the object of my invention to provide an improved structure whichis operative to secure manipulation of ay shovel in a manner quite akinto manual manipulation, and thus, the action may be broadly divided intotwo parts,-a thrust into the earth and a transferring action whereby thelor d thus encountered is carried away.

The excavating machinery of my invention is designed to be mounted on avehicle, and is particularly adapted for ditch digging. arrangementsbeing made for properly propelling the vehicle by way of the same motivepower which operates the digging mechanism proper. Provision is made forsteering the vehicle sulticiently to maintain it in line in the use thusparticularly referred to, and the embodiment of my invention hereinparticularly illustrated will be seen to be directed quite specificallyto this use.

The most difficult operations proposed for excavating machinery arethose of ditching marsh lands, and not only is the mode of operation ofthe shovel of my device particularly adapted to this use, but otherfeatures of my invention will be seen to be immediately applicable insuch a process.

The shovel of my device has three distinct motions in the course of itsoperation: first, its thrusting motion, whereby it is forced int-o theground to cut away a load; second, v

a. raising motion to lift the load from the ditch; and third, a swingingmotion to the side, whereby the load may be transferred to the earthworks resulting along the sides of the ditch. Each of these actions areconstrained motions either by mechanical connection or by gravity, aswill hereinafter appear more clearly, and all result, in the preferredembodiment which I describe, from a single source of motive power.

My invention is embodied in the structure illustrated in theaccompanying drawings, in which- Figure l is a side elevational viewthereof, parts being broken away to more clearly set forth the detailconstruction; Fig. 2 is a plan view, parts being broken away and shownin section to disclose th-e details ,'Fig, 3 is a partial sectional viewon the line 3, 3 of Fig. l; Fig. 4 is a developed view showing shaftconnections which will be hereinafter described; Fig. 5 is a developedview showing other shaft connections which will be hereinafter describedgA Fig. 6 is an end elevation of a detail showing the means provided forthe swinging' and raising of the shovel, parts being shown in section;Fig. 7 is a side elevation of the detail referred to in Fig. 6, partsbeing shown in section to illustrate the construction more clearly; andFig. 8 is a detail view, in side elevation, showing part of themechanism having to do with the propulsion and steering of the vehicle.

Like reference characters are applied to the same parts throughout thevarious tigures.

The main supporting frame of the device is supported primarily from abase in the form of a horizontal frame l0, which, as will be hereinafterdescribed, is mounted upon wheels to provide for locomotion. At

the front of this horizontal frame the uprights 11, 11 are provided.Midway between the front and rear thereof the uprights 12, 12 aresecured in any suitable manner. The tops of these uprights are connectedtogether by means of cross-bars 13, 13, and guy bars 14, 14 are boltedto the rectangular prismatic frame thus formed and to the horizontalframe, as clearly shown in Fig 1.

At 15 I have indicated an engine mounted in the frame-work, and at 16the operating shaft thereof, connection between the cylinder of theengine and the shaft being secured by way of the connecting rod 17 andthe crank 13. The fly-wheels are shown at 19, 19. The engine shaft 16 isprovided at the end thereof with a sprocket wheel 20, which is connectedby means of a link belt 21 with a sprocket wheel 22, keyed on a shaft 23mounted in the framework, with which shaft the various actuating devicesare operatively connected.

At the front of the rectangular supporting framework to which I havepreviously referred a cross-bar 24 is provided approximately midwaybetween the top and bottom of the uprights 11, 11, to which it issecured inA any suitable manner. Between this cross-piece 24 and thehorizontal frame 10 and approximately midway between the uprights 11, 11a yoke member 25 is provided, this yoke member having the upper pivotshaft 26 and the lower pivot shaft 27 extending therefrom at oppositeends in axial alinement and suitably mounted in the cross-piece 24 andt-he frame 10, respectively. Thus the yoke may be rotated on the pivotthus provided, a bushing 23 being provided in the opening in thecross-piece 24 for obvious purposes. A spacing and supporting member 29is provided upon the frame 10 about the pivot shaft 27 and the yokemember 25 is thus pivotally secured in the framework.

Secured to the bottom of the yoke member 25 by means of bolts 30, 30,and extending upwardly and downwardly therefrom, is a swinging beam 31,reinforcing plates 32 being employed at the base thereof, as clearlyshown in Figs. 1 and 7, for obvious purposes. A guide rod 32a connectswith an eye 32b on the beam 31 and with a suitable eye 32C on theframework, as clearly shown in Fig. 1, for supporting purposes. Theswinging` beam 31 is provided with a transverse opening near itsconnection with the yoke member with which it swings, and through thisopening and through the yoke 25 a thrust beam 33 extends, as shownclearly in Figs. 1, 2, 6 and 7. In the yoke 25 this thrust beam rest-supon a roller 34 mounted upon a small shaft 35 extending transverselyacross the yoke 25, this thrust beam being adapted to rest upon thisroller and to roll thereon, as will be hereinafter more fully set forth.The pivot shaft 27, which extends downwardly from the yoke member 25extends below the frame member 10 and is there provided with a gearsector 3G keyed to the shaft in any suitablel manner and held in placeby means of a locking sleeve 37, which is provided with the set nut 33.Meshing with this `gear sector 3G is a worm wheel 39, which is securelymounted upon a shaft 40 journaled in the side members of the horizontalframe 10, as clearly indicated in Fig. 2. This shaft 4() has keyedthereon near one end thereof a sprocket wheel 41, which is connected bymeans of a link belt 42 with a sprocket wheel 43 keyed near one end of ashaft 44. This shaft is provided with a gear 45, which meshes with apinion 4G loosely mounted on the `iack shaft 23. This arrangement isshown in Figs. 1, 2 and 3, and also very clearly in Fig. 5, which is a.developed view and shows these shafts as if they were disposed in thesame plane. The pinion 4G has secured thereto one element 47 of aclutch, the other element 43 of which rotates with the jack shaft 23through the medium of a feather. This arrangement provides for movingthe element 43 toward the element 47 so as to operatively connect theshaft 23 and the pinion 46. Also securely mounted upon the shaft 44 isav sprocket wheel 49, which is con nected by means of a link belt 50with a sprocket wheel 51 loosely mounted upon the shaft 23. Thissprocket wheel 51 is secured to one element 52 of a clutch, the otherelement 53 thereof being feathered to the shaft 23 to insure itsrotation therewith, but to provide for longitudinal movement relativethereto. The members 53 and 43 of the two clutches are provided with thegrooved collars 54 and 55, respectively, in the grooves of which thebifurcated members 56, 5G engage. These bifureated members are bothsecured to a laterally sliding rod 57, which is provided with the upfardly extending part 53, which terminates in an actuating lever 59,this lever being pivoted at G0 to a platform G1 suitably supported fromthe main frame 10 by way of braces 61. The driver and operator of thismachine stands upon this platform, where he is within easy reach of thevarious levers for controlling he different mechanisms. It will be seenthat the actuating lever 59 extends upwardly beyond this platform andwould be of ready access by the operator. By actuating the lever 59 therod 57 may be shifted to throw either one of the clutches 43 or intoactive operation. The lever in a midway position maintains the clutchingmechanism so that neither clutch is operative,

and the shaft 414 remains at rest. It is thus apparent that the lever 59may be brought into operation to operate the shaft 54 either in onedirection or the other and by way of the link belt 412, shaft 40, wormWheel 39, and sector 30 to swing the yoke 25 and con.- sequently thebeam 31 to either one side or the other.

The beam 33 is provided at its end with.

a shovel 62, of which the essential element is the spading blade 63.This shovel is pivoted at 011 to the forwardly extending bars 05 securedto the end of the thrust beam 33, and upon the pivot points 64C a yoke66 is also movably mounted. This yoke is provided with the eye 67, whichconnects with a lifting cable 68 by way of a connecting piece 69. Theshovel 62 is normally held in secure relation with the thrust beam '33by way of engagement with one end of a trip leverl 70 with a lug 71 onthe bottom of the shovel. This lever 70 is pivoted to the thrust beam 33at 72, and the power end of this lever is provided with a ring 73, whichconnects with a trip cord 74: passing over a pulley 75 in the mainframework and extending` to the rear of the framework, being secured at76 within easy reach of an operator standing upon the platform 61. Theshovel G2 may be provided, if desired, with the auxiliary cutting blades77. The operation of the tripping` mechanism will be described later.The lifting cable 68 passes over a sheave 7 8 in an opening 79 near thef end of the swinging beam 31, then passes over a pulley 80 suitablyhinged in the main framework to keep the cable free from the operatingmechanism and then passes to and is wound upon a drum shaft 81, to whichthe end of the cable is securely fastened. This drum shaft is, like theack shaft, mounted in any suitable manner in the framework. The drumshaft 81 is provided with a gear wheel 82, which meshes with a pinion 83loosely mounted upon the jack shaft 23. This arrangement is clearlyshown in F ig. 5, the developed view, and also in Figs. 1, 2 and 3. Thepinion 83 has secured thereto one member of a clutch 84, the othermember being feathered upon the jack shaft 23 to provide for itsrotation therewith and to permit its longitudinal movement relativethereto. The constantly revolving member of theclutch 84E is providedwith the usual grooved collar 85, in which engages the bifurcated end 86of an actuating lever 87, suitably pivoted at 88 on anfextension 89 fromthe platform 61. The actuating lever 87 terminates in a foot-piece 90,which extends above the platform 61 and is within easy reach of anoperator standing on the platform. The clutch 811 forms the drum forcoaction with a brake-band 91, which engages with a bell crank lever 92suitably pivotedl in a bearing 93 on the platform, and which terminatesin a foot-piece 94 within reachvof the operator. By depressing thefoot-piece 90 the clutch is thrown into operative position and the drum81 is rotated in the proper direction to wind the lifting cable 68. Tolower the beam 33 the clutch 84 is opened and the beam may drop of itsown mounted on the yoke 25, and from this pulley passes to the spiralgroove 98 in a drum 99 loosely mounted upon acounter-shaft 100. Aftertwo or three turns upon this drum the thrusting cable 95 again passes tothe front of the machine through a guide 102 and then through an eyebolt 103, which provides for its connection near the opposite end of thethrust beam 33. One end of the countershaft which I have just referredto has keyed thereon a gear 1011, which meshes with a pinion 105 looselymounted upon the jack shaft 23. This pinion has secured thereto onemember `106 of a clutch, the other member 107 of which has featheredengagement with the shaft 23, and is provided with the usual groovedcollar 108. The other end of the countershaft 100 extends outside theframework 10, and is there provided with a sprocket wheel 109, which isconnected by means of a link belt 110 with a sprocket wheel 111 looselymounted on the outer end of the jack shaft 23. The sprocket wheel 111has secured thereto one member 112 of a clutch, the other member 113 ofwhich is feathered to the shaft 23 and is provided with the groovedcollar 114.

Mounted in bearings 115, 115, extending upwardly from the framework 10is a sliding shaft 116, which has the forks 117 and 118 extendingdownwardly therefrom to engage with the grooved collars 108 and 114,respectively. The sliding rod 110 is connected with the actuating lever119, which is pivoted at 120 in the platform G1, above which it extendswithin easy reach of the operator. The bottom of this actuating lever119 may be bifurcated, as is usual in the art in arrangements of thiskind, toengage in a grooved collar 121 and to thereby provide forshifting the rod 110 from side to side, as is well understood. 1t is nowapparent that shifting the rod 116 from side to side operates to throwinto operative position either the clutch 10G, 107 or the clutch 112,113, and by this operation determines the direction in which the shaft100 shall rotate. As will hereinafter more fully appear, this shaftdetermines direction not only as to the operation of the thrusting cable95, but also as to the locomotion of the machine.

The drum 99 is loosely mounted upon theshaft 100, as is also a sleeve122, which is provided with a sprocket wheel 123, over which passes alink belt. 124 to connect the same with a sprocket 125 mounted upon ashaft 126 near the rear of the frame 10. This sprocket wheel has securedthereto a reducing` sprocket 127, which is connected by means of a linkbelt 123 with a sprocket 129 mounted upon the rear axle 130, at each endof which a locomotion wheel 131 is secured, this axle being suit-ablymounted in the framework. These locomotion wheels, in the presentembodiment, are in the form of wide drums, so that the machine may bewell propelled in soft and marshy lands. Also mounted upon the rear axle130, in about the middle thereof, is a sprocket wheel 132, which isconnected by means of a link belt 133 with a sprocket 134 operativelymounted upon the forward axle, as will be hereinafter described.

Returning now to the devices relative to the shaft- 100, it will be seenthat the sleeve 122, which is loosely mounted on the shaft 100, is inreality a clutch member for coaction with a clutch sleeve 135, which isfeathered upon the shaft 100 and which is provided with the usualgrooved collar 136. The drum 99 has secured thereto a clutch member 137,which is arranged to coact with a clutch member 138, which is featheredon the shaft 100 and has secured thereto the grooved collar 139. Clutchforks 140 and 141 engage in the grooved collars 136 and 139,respectively, and are connected together by suitable means and with anactuating lever 142, which is pivoted at 143 to the platform framework61. The lever 142 extends through and above the platform, so that it maybe within easy reach of the operator. It will now be seen that actuationof the lever 142 from side to side simultaneously moves the clutchmembers 135 and 133 and brings into active relation with the shaft 100either the drum 99 or the sleeve 122. lhen the drum 99 is brought intoactive relation the yoke 25 and by reason of the quite taut arrangementof the thrusting cable 95, which extends from the beam at one side ofthe roller to the same at the other side of the roller, the propellingmechansmwthat is, the drum 99 intervening. Upon suitable rotation of thedrum 99 the cable draws the shaft 33 downwardly or upwardly, inaecordance with the direction of the drum. Then the drum is rotated inthe proper direction the cable will be drawn down and will carry with itthe beam at all times, holding it fulcrumed against the roller,thrusting it into the ground with a motion substantially parallel to thespading blade of the shovel itself. By this action a load of earth isspaded and determined, and by the subsequent action of the raising drumS1 the shovel is 1laised out of the ditch. After the shovel has beenswung around, as has been heretofore pointed out, it may be relieved ofits burden, and after coming into position over the proposed ditch, thethrusting drum is again operated to draw the shovel back and thenreversed to again thrust it into the ground.

Going back to the locomotion ol" the structure, it will be seen byreference to Figs. 1 and 2, and particularly to Fig. 3, that theSprocket wheel 134. which is connected by means of the link belt 133with the sprocket 132 on the rear axle, is provided with a squareopening` which tlares outwardly from a central edge. rThe front axle 144is provided with a square portion 145, which engages in the squareopening in thev sprocket 134. rPhe forward sprocket 134 is held in placeconveniently by means of angle-bars 146, 146, which are secured as partof the framework, as clearly shown in F ig. 2. To the under side of theangleirons 146, 146 an annulus 147 is secured in any suitable manner,and with this anuulus a second annulus 143 is associated iu the way of aturntable. To the under side of the lower annulus 14S, the bearingmembers 149, 149 are secured, these bearing members being provided withsimilar grooves to correspond to the curve of the annuli and to engagethe sides of both of them as illustrated in Figs. 2 and 3. By thisarrange ment the front axle is held in place and may swingsomewhat toprovide for steering` the device within reasonable limits. ln order thatthis steeringmay take place, the square opening in the sprocket 134 isliared, so that the swinging of the forward axle 144 will not in any wayinterfere with the link belt. connection between the sprockets 134 and133. To steer the device the axle is provided with the grooved sleeves150, 150, in which engage the rings 151, 151, which are connected bymeans of rods and connecting chains 152, 152 with a small drum 153,which may be actuated in any suitable manner by means of a handle orsteering wheel 154. As shown in Fig. 8, a suitable base 155 may beprovided to properly support these operating parts in the steering andpropelling arrangement. As a safeguard for the operation of all theparts I provide upon the clutch 106, 107 on the jack shaft 23, which isin the form of a drum, a brake-band 156, which is suitably secured atone end at 157 in the framework and at its other end is 4connected witha bell crank lever 158, which is mounted in a bearing 159 on theplatform 61 and terminates in a foot-piece 160 within reach of theoperator. This is designed to brake the movement at any stage shouldsuch become desirable.

At the forward end of the swinging beam 31 T provide extensions 161, tothe end of which is secured a scraper 162. This scraper is arranged toengage the shovel 6 2 when it is drawn upwardly, and is effectual inforcing therefrom any material which might adhere thereto.

Although the operation of the various parts has heretofore beendescribed in connection with the description of the specifications ofthe construction, I will add a brief summary of the actions in the usualoperation of my device.

As has been before stated, the device is particularly useful in thedigging of a ditch.l and it is apparent tha" it may be propelledintermittently as desired as the ditch is dug, the wide drums of thepropelling wheels being useful should the structure be employed indigging marsh lands. While the structure is being brought into place foroperation or while it is being propelled into another position theclutch member 135 is in engagement with the clutch member 122. Theengine sh aft 20 rotates constantly in the direction of the arrow a andcauses constant rotation of the jack shaft 23 in the direction of thearrow Z). By the use of the lever 119, the direction of the countershaft100 is determined, and while locomotion is taking place the actuation ofthe lever 142 has brought the clutch member 135 into engagement with theclutch member 122. When the proper position is finally reached, theactuating lever 142 is thrown onto the other side and the clutch member138 is brought into engagement with the clutch member 137, thusconnecting the drum member 99 with the shaft 100. The proper directionis again determined by the course of the actuating lever 119 and thethrust beam 33 is drawn downwardly to thrust the shovel 62 into theearth, as has heretofore been described. After this operation has beencompleted, the lever 119 is set so that neither clutch 106, 107 nor 112,113 is in operative position, and no motion is transmitted to the shaft100. The shovel has now severed its load from the earth and is ready tobe raised. The foot-piece 90 is then depressed to throw the clutch 84into operative position, and the drum shaft 81 is then operated to windthe lifting cable 68. Either after the shovel has been sufficientlyraised or while it is being raised, the swinging mechanism is operatedby actuating the lever 59. This actuation of the lever 59 throws eitherthe clutch member 52, 53 or 57, 58 into operative condition, dependingupon the side where the load is to be deposited. Thus, these twooperations may be done simultaneously, if convenient, or t-he shovel maybe swung after it has been raised to a predetermined position. Thelevers 59 and 119 thus each may assume three positions to determine onedirection or the other and to determine either rest or motion. The lever142 may occupy two positions to connect in operative relation with theshaft 100 either the propelling device or the thrusting device. When theshovel has been raised and properly swung to the side of the ditch, theoperator pulls the cord 68 and thereby draws up the power arm of thelever 70 to release the detent arm thereof from the lug 71. The weightof the load then turns the shovel, so that it maybe readily droppedtherefrom onto the earthworks at the side. The footpiece 90 is thenreleased to allow the shovel to drop, this drop being retarded bydepress" ing the foot-piece 94 to bring the brakeband 91 into action.This usually takes place after the lever 59 has been reversed to swingthe shovel back to its position over the proposed ditch. Then the lever119 is reversed to operate the drum 99 in the oppo site direction todraw the shovel back ready for another strike into the ground. Should itbe desired to further propel the vehicle, the lever 142 is operated,thus throwing out the drum 99 and throwing the sprocket sleeve 122 intoengagement with the shaft 100. The depth of the strike is determined bythe operator, who has charge of the various levers and foot-pieces, andthe extent of the other actions may be determined by him. Tf at any timethe action should be retarded or stopped, such being often the case inswinging the shovel, the foot-piece 160 is operated to brake the ackshaft.

It is seen that the thrust of the beam 33 is substantially in thedirection of the spading blade of the shovel, and it is apparent thatthis primary action in reality cuts a load from the earth and doesnothing else. The subsequent operations transfer this load n oto out ofthe ditch and to the side thereof, at the will of the operator.

l claim as new and desire to secure by Letters Patent:

1. In an excavating machine, in combination, a supporting framework, ashovel movably mounted thereon, means for imparting a longitudinalthrust to said shovel, means for raising said shovel, means forpositively locking said shovel in position to retain its load, means fortripping said locking` means to tip said shovel forwardly to dischargeits load from the front thereof, and a scraper carried by said frameworkand arranged in position to be engaged by any material carried by theshovel when the same is tipped.

2. In an excavating machine, in combination, a jack shaft, an engine forrotating said jack shaft constantly in one direction, a counter shaft,means for operating said counter shaft from said jack shaft in eitherdirection, a drum mounted on said counter shaft, a thrust beam, a shovelcarried by said beam, a cable wound upon said drum and connected withsaid thrust beam to operate same in either direction, a second countershaft operatively connected with said jack shaft, a reel upon saidsecond counter shaft, a cable extending from said reel to said shovel,means for rotating said reel in one direction to raise said shovel, andmeans for releasing said reel to permit the lowering of said shovel.

3. In an excavating machine, in combination, a jack shaft, an engine forrotating said jack shaft constantly in one direction, a counter shaft,means for reversing the direction of said counter shaft, a drum on saidcounter shaft, a beam, a shovel mounted on said beam, a cable having itsends connected toward the respective ends of said beam and being woundin part on said drum, a swinging frame in which said beam is mounted, asecond counter shaft connected with said jack shaft, means foroperatively connecting said second counter shaft with said swingingframe, a third counter shaft, a reel on said third counter shaft, and acable connecting said reel with said shovel to raise the same.

4. In an excavating machine, a vehicle, a swinging boom carried thereby,a thrusting beam mounted on a fulcrum in said boom, a shovel on saidbeam, a jack shaft, an engine for driving said jack shaft, a counter'shaft driven from said jack shaft in either direction, a winding drumassociated with said counter shaft, a cable wound upon said drum andhaving its ends attached near the respective ends of said beam, a secondcounter shaft driven from said jack shaft in one direction and free inthe other, a winding drum on said second counter shaft, a cable on saidsecond named winding drum, said cable passing over a bearing point insaid boom and being attached to the end of said beam, a gear segment onsaid boom, a worm meshing with said segment, a third counter shaft, andconnection between said third counter shaft and said worm whereby thelatter may be operated in either direction.

5. In an excavating machine, in combination, a supporting` framework, ashovel movably mounted thereon, means for raising said shovel, means forpositively locking said shovel in position to retain its load, means fortripping said locking means to tip said shovel forwardly to dischargeits load from the front thereof, and a scraper carried by said frameworkand arranged in position to be engaged by any material carried by theshovel when the same is tipped and raised.

6. In an excavating machine, in combination, a jack shaft, an engine forrotating said jack shaft constantly in one direction, a counter shaft, apinion on said ack shaft, a gear on said counter shaft meshing with saidpinion, a pulley on said counter shaft, a pulley on said jack shaft, abelt connecting said pulleys, clutch mechanism for operativelyconnecting said jack shaft with either the pulley or the pinion thereon,a drum mounted on said counter shaft, a thrust beam, a shovel carried bysaid thrust beam, a cable wound upon said drum and connected with saidthrust beam to operate same in either direction, a second counter shaftoperatively connected with said-jack shaft, a reel upon said secondcounter shaft, a cable extending from said reel to said shovel, meansfor rotating said reel in one direction to raise said shovel, and meansfor releasing said reel to permit the lowering of said shovel.

7. In an excavating machine, in combination, a ack shaft, an engine forrotating said jack shaft constantly in one direction, a counter shaft,means for reversing the direction of said counter shaft, a drum on saidcounter shaft, a thrust beam, a shovel i'nounted on said thrust beam, acable having its ends connected toward the respective ends of saidthrust beam and being wound in part on said drum, a second counter shaftconnected with said jack shaft, means for operatively connecting saidsecond counter shaft with said swinging frame, a third counter shaft, areel on said third counter shaft, a cable connecting said reel with saidshovel to raise the same, and means for braking said third countershaft.

S. In an excavating machine, in combination, a ack shaft, an engine fo-rrotating said jack shaft constantly in one direction, a counter shaft,means for reversing the direction of said count-er shaft, a drinn onsaid counter shaft, a thrust beam, a shovel mounted on said thrust beam,a cable having its ends connected toward the respective ends of saidthrust beam and being wound in part on said drum, a second counter shaftconnected with said jack shaft, means for oper- In Witness whereof Ihereunto snbseribe my name this 18th day of September, A. D.

ntively connecting said second counter shaft with said swinging frame, athird counter shaft, a reel on said third counter shaft, a Cableconnecting said reel with said shovel to reise the same, means forbraking said third counter shaft, and a brake for said jack shaft.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

